250 prompts matching "The chromophore, and why a dye is coloured"
Explain back: Thermochemistry and reaction rates reviewed
I have just studied thermochemistry and reaction rates reviewed in my SS2 Chemistry class.
Chemistry at work: Cracking, and the making of petrol in Nigeria
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Quiz me: Addition polymerisation and the products it gives
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Explain back: Condensation polymerisation and the products it gives
I have just studied condensation polymerisation and the products it gives in my SS2 Chemis
Chemistry at work: The petrochemicals made from oil and gas
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Explain back: Why the chosen conditions are a compromise
I have just studied why the chosen conditions are a compromise in my SS2 Chemistry class.
Chemistry at work: The benefits and the hazards of nuclear chemistry
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Chemistry at work: Why ionic compounds conduct only when molten or dissolved
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Explain back: Why metals conduct heat and electricity
I have just studied why metals conduct heat and electricity in my SS2 Chemistry class. Let
Real-life Nigeria: The properties of ionic and covalent compounds compared
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Exam practice: The structures of diamond, graphite and silica
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Spot my mistake: Explaining metallic conductivity by the movement of ions
Act as my SS2 Chemistry tutor. Show me a worked answer on explaining metallic conductivity
Real-life Nigeria: Alloys, and the reasons they are made
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Exam practice: Identifying the species oxidised in a reaction
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Spot my mistake: Assigning an oxidation number without checking the overall charge
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Spot my mistake: Calling the oxidising agent the substance that is oxidised
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Chemistry at work: Redox reactions in batteries and cells
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Practice set: Density, melting point and hardness across the metals
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Spot my mistake: Assuming every metal is hard and dense
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Quiz me: The link between reactivity and the method of extraction
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